Whats the big benifit of the 71 and stock fuel? Power and boost is there pretty quik with my truck...how much more can you really flow through the boost pipe inbeetween the two? I'm seeing 45/50 psi how much or what ar you gaining? How much more boost do you need without extra fuel? Them are my thaughts....no expert by any means.....I'd like to see rudys motor though when I pop my hood lol....
Its not about boost its about mass air flow.
71mm turbo is good for an.extra 40-60 HP with no real gains in boost. On stock fuel
Its all about efficiency